PRODUCT OVERVIEW Right Side (Viewed from Flywheel) - 3YM20 Left Side (Viewed from Flywheel) -3YM20 Figure 3 and Figure 4 illustrate a typical version of a 3YM20 engine. Your engine may have different equipment from that illustrated.
2 3 4 2 5 1 6 3 4 7 5 1 8 6 7 051099-00X00 Figure 4 8 1 – Seawater Pump 2 – Coolant Filler Cap 3 – Engine Nameplate (on rocker arm cover) 4 – Coolant Tank / Heat Exchanger 5 – Exhaust Manifold 6 – Starter Motor 7 – Shift Lever 8 – Alternator 9 0004783 Figure 3 1 – Intake Silencer (air cleaner) 2 – Intake Manifold 3 – Fuel Filter 4 – Fuel Injection Pump 5 – Engine Oil Dipstick 6 – Engine Oil Filler Cap 7 – Fuel Feed Pump 8 – Engine Oil Filter 9 – Marine Gear 14 YM Series Operation Manual